Shares of Stryker (NYSE: SYK) are underperforming the broader stock market Friday following an earlier downgrade from Rodman & Renshaw. The firm cut its rating on the stock from Outperform to Market Perform.

While the Dow and S&P 500 are up about 0.7 percent and 0.5 percent, respectively, Stryker shares are down about 0.6 percent to $54.05.

For an analyst ratings summary and ratings history on Stryker click here. For more ratings news on Stryker click here.